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On Mar 23, 2012 5:53 PM, "Martin Tarenskeen" <<a href="mailto:m.tarenskeen@zonnet.nl">m.tarenskeen@zonnet.nl</a>> wrote:<br>
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> On Fri, 23 Mar 2012, S C Rigler wrote:<br>
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>> On Fri, Mar 23, 2012 at 3:08 AM, Martin Tarenskeen <<a href="mailto:m.tarenskeen@zonnet.nl">m.tarenskeen@zonnet.nl</a>> wrote:<br>
>><br>
>> Hi,<br>
>><br>
>> I am trying kernel-rt-3.2.11-1.rt20.1.fc16.ccrma.i686 from the testing<br>
>> repo. This version still gives me bad performance, unstable mouse cursor,<br>
>> etc. On my terminal screen I see a continuous stream of these messages:<br>
>><br>
>> Message from syslogd@D600 at Mar 23 08:59:06 ...<br>
>> kernel:[ 61.756381] Disabling IRQ 11<br>
>> (.....)<br>
>><br>
>> The kernel-rt-3.2.9-1.rt17.1.fc16.ccrma.i686 version is usable on my<br>
>> system and does not have this problem.<br>
>><br>
>><br>
>> Martin,<br>
>><br>
>> What do you have on IRQ 11? I've had similar problems with 3.0-rt and 3.2-rt until I enabled MSI for the devices that<br>
>> were on the IRQ it was complaining about. <br>
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> How do I find that out? What is MSI ?<br>
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<p>Cat /proc/interrupts to see what's using IRQ 11.</p>
<p> <a href="http://en.wikipedia.org/wiki/Message_Signaled_Interrupts">http://en.wikipedia.org/wiki/Message_Signaled_Interrupts</a></p>
<p>Not all devices support MSI, but if one of the ones on your IRQ 11 does then you may be able to enable it with a module parameter and move it to a different IRQ. </p>
<p>--Steve </p>